Window ventilator



Dec. 4, 1951 NIHON 2,577,623

WINDOW VENTILATOR Filed June 19, 1948 5 Sheets-Sheet l A I TUNA/EV Dec.4, 1951 A. NIHON WINDOW VENTILATOR Filed June 19, 1948 3 Sheets-Sheet '2AIIUH/VKZ Dec. 4, 1951 NlHON WINDOW VENTILATOR 3 Sheets-Sheet 3 FiledJune 19, 1948 m/vnv rm? am 77% dwwamw ATTUHA/KY Patented Dec. 4, 1 951UNITED WINDOW VENTILATOR- Alexis; NihomMontreal, Quebec, CanadaApplication June 19, 1948; Serial N 0. 33,959 In Canada October-16, 19462:0laims. 1

The invention relates to -improvements in window ventilatorsas-described in. the presentspecification and illustrated in theaccompanying drawings that form a partof the same.

The invention consists essentially of the novel features of constructionas -pointed out broadly and specifically in the-claims for noveltyfollowing a description containing an explanation in detailof" anacceptable form of the invention.

The objects of the invention are to devise a roombecomes normal orslightly lower; the window ventilator'willautomatically close; to'devise a window" ventilator which will tend'to prevent dust and, dirtentering the room; toconstruct' a window ventilator in which theventilating members' may be built-up to-suit any size of Window; toprovide a window'ventilator which will automatically open and closequietly without any noticeable noise; to devise a window ventilatorwhich will permit-light to;enter a room when the ventilator is in eitheran open or closed position; and i generally to provide a Windowventilator which will automatically function at all times as the roomtemperature changes, and at the same. time, be; durable andeflicientforits purpose.

Figure l is a front. elevation of the window ventilator.

Figure 2 is a plan sectional-view as taken'onzthe line 2.-2 in Figural.

Figure-3 is a vertical sectional view as taken on the line 3-3 inFigure-l showing the window ventilator ina closed position.

Figures is avertical'sectional View similar to; that of Figure 3 withtheexception, that the window ventilator is shown? in an; open ,positi0n.

Figure a side'view showing one: of-the stripsin the windowventilator.

Figure- 6 is an en'd'view of'Figure 5.

Figure 7 is: a.'.fragmentary perspective view showingea portion of the,side frame andgventilating strips.

Like numerals of reference indicate corresponding parts in the variousfigures.

Referring to the drawings, a conventional window frame, is indicated bythe numeral'lll, and

the upper andz lower sash by the numerals H and [2 respectively; Theupright. side members [3131111 Hi have-theupperand lower crossmembers[3A and MA welded or otherwise secured to same forming a rigid.ventilator-frame. These upper and. lower cross members HA and MA serveto accuratelyspace the side members l3'and M" and are not securedv tothe window frame. These upright side members 13 and Hi on which thewindow ventilator is mounted are secured to the window frame l0 at eachside thereof by screws or other suitable means. The upright side membersi3 and M are 2 shaped" in this instance, but: could be any othersuitable shape without generally afi'ecti'ng the advantages of theinvention. The upright strips or upright louver mounting bars I5 and I6arewelded or otherwise secured to the inner side of the upright sidemembers I3 and M respectively. These upright strips have a plurality ofslots or cutouts IT in which the movable members or'ventilating strips I8 are pivotally mounted.

The movable members or ventilating strips I8 may be made of glass,plastic, or any other translucent material that will permit light topass through. The pins 19 are fixedly secured in the ends of theseventilating strips it towards the upper edge of same. In assembling theventilatingstrips t8, the pins l9 are inserted in the slots ITin-theupright strips I5 and I6. The shape-of the slots l'l permit the pins [9to enter the same and then drop downward so that they are substantiallyheld in these slots. The venti lating strips l8 are pivotally secured inthe upright strips [5 and I6so that the horizontal edges of the sameareadjacent to one another when in a closed position.

The thermostat 26- is suitably located in the room to be ventilatedand-connected to the motor 2-: bymeans of theelectric wiring 22. Themotor 21 is mounted on the wall at the side of the window frame Ifl-so-as to be in a suitable position for operating the; ventilatingstrips l8. Thismotor. is of" a slow operating type providing a means of"gently opening and closing the ventilating strips it. The crankarm 23 isfixedly secured to .a rotating; shaft in the motor 2|. The bracket 2:4.isfixedly securedto the verticalmovable strip or louver connecting bar25. A connecting arm ,z la'isfipivotally secured to the, lower end. of.the

bracket 24'. andalso. pivotally secured to, the outer endlofthe. crankarm 23 thus providinga. means 7 of raising and lowering the movablestrip 25. A

25 and extend outward therefrom, passing through slots 21 in the uprightside member l3 a suitable distance. The free end of these connectingarms 26 have the clamps 28 welded or otherwise secured thereto. Theseclamps are U-shaped and provided with a clearance hole for the pins 19,thus permitting the same to fit securely over the end of the ventilatingstrips I8.

In the operation of the window ventilator the thermostat determines theoperation of the motor 2 I. than normal the window ventilator is in aclosed position. As the temperature in the room rises above normal thethermostat 20 completes the electric circuit to the motor 21, which inturn, operates sufficiently to open the ventilating strips I 8. As themotor 21 rotates the crank arm 23 turns in a predetermined are thuslowering the bracket 24 by means of the connecting arm 24a. The bracket24, which is fixedly secured to the vertical movable strip 25, thuslowers the latter. As this movable strip 25 moves downward theconnecting arms 26, which are pivotally secured thereto, tilt the clamps28 and ventilating strips l8 which are rotatably mounti.

.ed in the slots I! in the upright strip [5. The slots I! in the sidemember is are of sufficient length to permit the free movement of theseconnecting arms.

When the room temperature drops to a point f below normal theventilating strips are closed as the device operates in the oppositedirection to that described in the foregoing.

It will be noted that the ventilating strips [8 shown in Figure 7overlap one another instead of abutting one another as shown in Figure1, thus providing an alternative manner of assembling the same.

It will be seen that the invention as described herein will provide ameans of automatically regulating room temperatures during the day andnight, thus rendering the same adaptable for use in offices, homes andthe like.

What I claim is:

1, In window ventilators, a window frame, upright side members, andupper and lower cross members secured to said upright side membersforming a rigid ventilator frame and supported within said windo frame,said upright side members being 2 shaped, and upright louver mountingbars extending parallel to said upright side members within said windowframe, said upright louver mounting bars having a plurality of slotstherein, movable ventilating louvers pivotally mounted in the slots insaid upright louver mounting bars, said movable ventilating louversbeing made of a translucent material, pins fixedly secured in the endsof said movable ventilating louvers towards the upper edges thereof,said pins being inserted in the slots in said upright louver mountingbars for movably supporting said movable ventilating louvers, athermostat suitably located in a room to be .ventilated, a motorsuitably located with re spect to said movable ventilating louvers,electric wiring connecting said motor with said thermostat, said motorbeing of a slow operating type, a crank arm fixedly secured to arotating shaft in said motor, one of said upright side members having aplurality of elongated slots therein and suitably spaced apart withrespect to one another, horizontal connecting arms fixedly secured toone end of each of said movable When the room temperature is lowerventilating strips and extending through the elongated slots in saidupright side member, a louver connecting bar pivotally connected to thefree end of each of said horizontal connecting arms, means connectingsaid louver connecting bar with said crank arm. for imparting areciprocating motion in said louver connecting bar up on the operationof said motor. v

2. In window ventilators, a window frame, upright side members. andupper and lower cross members secured to said upright side membersforming a rigid ventilator frame and supported within said window frame,said upright side members being Z-shaped, and upright louver mountingbars extending parallel to said upright side members Within said frame,said upright louver mounting bars having a plurality of slots therein,movable ventilating louvers pivotally mounted in the slots in saidupright louver mounting bars, said movable ventilating louvers beingmade of a translucent material, pins fixedly secured in the ends of saidmovable ventilating louvers towards the upper edges thereof, said pinsbeing inserted in the slots in said upright louver mounting bars formovably supporting said movable ventilating louvers, a thermostatsuitably located in a room to be ventilated, a motor suitably locatedwith respect to said movable ventilating louvers, electric wiringconnecting said motor with said thermostat, said motor being of a slowoperating type, a crank arm fixedly secured to a rotating shaft in saidmotor, one of said upright side members having a plurality of elongatedslots therein and suitably spaced apart with respect to one another,clamps substantially secured to one end of each of said movableventilating louvers, horizontal connecting arms fixedly secured to eachof said clamps and extending through the elongated slots in said uprightside member, a louver connecting bar pivotally con: nected to the freeend of each of said horizontal connecting arms, a bracket fixedlysecured to said louver connecting bar, and a connecting arm pivotallysecured to the lower end of said bracket and to the free end of saidcrank arm on saidmotor thus providing a means of raising and loweringsaid louver connecting bar and accordingly tilting said movableventilating louvers upon operation of said motor.

ALEXIS NIHON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 335,353 Hayes Feb. 2, 1886369,801 Markland Sept. 13, 1887 418,193 Kolzem Dec. 31, 1889 1,178,971Thode Apr. 11, 1916 1,488,345 Jenkins Mar. 25, 1924 1,570,111 WickwareJan. 19, 1926 1,611,845 Allen Dec. 21, 1926 1,763,888 Vernet June 17,1930 2,158,413 Feinberg May 16, 1939 2,159,696 Gross May 23, 193E)FOREIGN PATENTS Number Country Date 171,946 Great Britain Dec. 1, 1921

